Combined window-platform and fire-escape



(No Model.)

T. JARVIS.

COMBINED WINDOW PLATFORM AND FIRE ESCAPE.

Patented June 12 1883.

fare/7122',

UNITED STATES. PATENT OFFICE.

THOMAS JARVIS, OF CHICAGO, ILLINOIS.

COMBINED -W|NDOW PLATFORM AND FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 279,167, dated June 12, 1883.

Application filed December-28,1882. (No model.)

To all whom, it may concern.-

Be it known that I, THOMAS JARVIS, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful improvement in a Combined Folding Window- Cleaner and Fire-Escape, of which the following is a specification, to wit:

This invention relates to combined fire-escapes and windowplatforms; and it consists in a folding frame adapted to be hooked upon the inside and project in front of a window, and provided with a slatted floor and a folding ladder, said parts being constructed and arranged as hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the accompanying drawings, in which- .Figure 1 is a perspective View of my invention; Fig. 2, a detailed view of one of the standards.

A represents a rectangular frame having its sides formed with a rule-joint, a, and having its inner ends provided with pivoted hooks 0/, adapted to engage with the inner edge of the window-sill.

B B represent cross-bars which brace the frame and secure it firmly in shape, and near the outer corners are pivoted jointed braces C C, having their lower ends secured by chains 0 c to the main frame, as shown. These braces rest at their lower end against the wall when the device is in position, and aid in supporting the frame. At the extreme outer corners the frame is furnished with standards D D, hinged upon its under side, and connected. when thrown up, by a chain, d, and hook d, forming a hand-rail to prevent persons falling off.

Upon the frame A, beyond the windowledge, are arranged several slats, ff, hinged together and to the frame, as seen at e c, in such a manner as to form a substantial platform upon which to stand, and which may be folded back at any time desired to reach the ladder below.

, G represents a folding ladder, its sides formed of hinged sections 9, having their lower ends bent back, as seen at g, and connected by rounds g". This ladder is readily folded up when not needed, and is light and strong, while the curved ends of the side sections hold it away from the wall and prevent the ladder swaying in and forcing the feet off the rounds.

The whole device may be readily folded into a small compass, as .will be fully understood from the drawings, and will then occupy but little space. When used as a windowcleaning platform the ladder may be unhooked and laid aside.

I also provide a spiral spring, secured at one end to the hooks a a and at the other to the main frame, which tends to draw the hooks down and insure their firmly engaging the window-frame when the device is placed in position. The main frame is also provided witha series of holes, to one of whichthe hooks are secured by a bolt and nut in order that they may be readily changed to suit windowframes of different widths.

It will be understood that I do not herein claim the folding ladder, specifically, such be ing reserved for a future application.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a window-platform, the combination, with the frame A, having rule-j oints a and hooks a, and folding platform f f, of the jointed braces C C, supported by chains 0 c, and hinged standards D D, connected bya chain, (1, and hook cl, substantially as and for the purpose set forth. v p

2. The combination, with the jointed frame A, having cross-bars B B, hooks a a, hinged slats f f, hinged standards D D, and folding braces C C, of the folding ladder G, substantially as shown and described. 

